How to encourage team members to actively participate in project management activities ?

First. Make sure that your vision is provided as a road-map for your employees, and that they know each twist and turn.

Second. Don’t just assume that each and every one of your employees has all the tools, training, and support from supervisors they need –check in with them personally and find out.

Third. Make sure to ask questions, and if they are confused, redesign the way the information reaches them, Like Training sessions, memos, and regular meetings.

Fourth. Figure out a way to get all of your employees engaged in planning and decision-making. That way the project becomes their baby: something they’re willing to fight for.

Fifth. Good bosses pay attention to the big picture and the details, and care about both the product and the employees.

And finally you can use ADKAR model for change in your business ;

Helping people to take responsibility.